Ac Infinity pH Meter KitA digital water quality meter designed to measure waters acidity, alkalinity, and temperature to help optimize its quality for gardening and water treatment applications. The highly responsive sensor probe utilizes a lithium glass membrane to instantly determine pH readings with highly precise 0. 1 accuracy. This pH pen tester for water features an IP 67 rating, specially sealed to withstand moisture and heat, as well as block out intrusive dust and